а) 11.7x + 88.3x = 15.4100x = 15.4x = 15.4 / 100x = 0.154
б) (0.8 + x) / 6 = 0.40.8 + x = 0.4 * 60.8 + x = 2.4x = 2.4 - 0.8x = 1.6
Ответ: а) x = 0.154, б) x = 1.6.
а) 11.7x + 88.3x = 15.4
100x = 15.4
x = 15.4 / 100
x = 0.154
б) (0.8 + x) / 6 = 0.4
0.8 + x = 0.4 * 6
0.8 + x = 2.4
x = 2.4 - 0.8
x = 1.6
Ответ: а) x = 0.154, б) x = 1.6.